Unreliably checked box is a box whose fill has been evaluated neither as empty nor checked or filled. The form may contain unreliably checked boxes for various reasons:
the person filling the form used a pencil which is too thin
the person filling the form only made a line in the box
defect in the paper of the form
The following image shows the situation where it is not clear whether the box should be empty or checked. For group, the definition of the template requires at least one answer so the program offers, as a likely variant, that the box is filled.
In this situation, the user must determine whether to mark the group as empty by pressing * on the numeric keypad or by pressing the button. Second option is to mark the box "C" as checked by pressing Enter or the C key or the 3 key on the numeric keypad.